Home / 19,992.12-29,982.71-7,511.18

Finding the Fourth Proportional to 19,992.12, 29,982.71 and 7,511.18

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Solution

The fourth proportional to 19,992.12, 29,982.71 and 7,511.18 is: 11,264.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,992.12 : 29,982.71 = 7,511.18 : x
  2. Step 2: Convert to fraction form
    19,992.12/29,982.71 = 7,511.18/x
  3. Step 3: Cross multiply
    19,992.12x = 29,982.71 × 7,511.18
  4. Step 4: Simplify right side
    19,992.12x = 225,205,531.70
  5. Step 5: Solve for x
    x = 225,205,531.70/19,992.12
  6. Step 6: Final answer
    x = 11,264.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.